'm absolutely psyched. >> hit, hit, hit and more hits. >> reporter: if people in our city seem especially confident today, it's because they've supersized their nat-itude. >> woo! >> reporter: the regular season, blew collar baseball, play, play, travel, play, play some more. but when the air gets crisp and the bunting goes up, the play-offs begin, new pressures. new nat-itude. regular season nat-itude would be what? >> go nats. >> reporter: now give me some play-off nat-itude! >> go, nats! >> reporter: she saw it. >> incredible hit, yes. he wanted that home run. >> reporter: so did he. >> absolute elation. i was jubilant. >> reporter: in nationals baseball lore, this could be known as the at-bat. bottom of the ninth, score tied, jayson werth fouls off pitch after pitch. and then walk-off home run. >> deep to left field! way back! it's gone! >> reporter: when he hit that home run, what was the feeling in your heart? >> i was almost ready to cry. like i am right now talking about it. it was such a good feeling. >> reporter: this is bob keran. he's been a season ticket holder for seven year